From 6daae85740ba3d2f528e3dc05380c1e1e89f8c65 Mon Sep 17 00:00:00 2001
From: Valk Richard Li <48872266+ValKmjolnir@users.noreply.github.com>
Date: Sat, 24 Oct 2020 00:24:49 +0800
Subject: [PATCH] fixed another bug (:()

---
 nasal_runtime.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/nasal_runtime.h b/nasal_runtime.h
index 69d031c..04e3e9e 100644
--- a/nasal_runtime.h
+++ b/nasal_runtime.h
@@ -1261,7 +1261,14 @@ int nasal_runtime::call_vector_mem(nasal_ast& node,int base_mem_addr,int local_s
             ++error;
             return -1;
         }
-        std::string str=node.get_children()[0].get_str();
+        int str_addr=calculation(node.get_children()[0],local_scope_addr);
+        if(str_addr<0 || nasal_vm.gc_get(str_addr).get_type()!=vm_string)
+        {
+            std::cout<<">> [runtime] call_vector_mem: must use a string as the key.\n";
+            ++error;
+            return -1;
+        }
+        std::string str=nasal_vm.gc_get(str_addr).get_string();
         return_mem_addr=nasal_vm.gc_get(base_value_addr).get_hash().get_mem_address(str);
     }
     return return_mem_addr;